In chemical production, fluid measurement faces multiple challenges such as strong acid and alkali corrosion, high-temperature and high-pressure environments, and precise multi-component ratio matching. Traditional metering pumps often encounter problems like aging and leakage of sealing components, sudden drop in measurement accuracy, and frequent equipment failures under such complex working conditions. This not only affects production efficiency but also poses safety risks. However, digital metering pumps, with their targeted technical designs, have become a new choice for measurement in the chemical industry.
In terms of corrosion resistance, the digital metering pump has achieved a qualitative breakthrough. The core components that come into contact with the fluid are sealed with fluorosilicone rubber, and the ceramic piston is combined with PTFE pump head. It can withstand strong corrosive media such as 98% sulfuric acid and 50% sodium hydroxide. Even at a high temperature of 80℃, it can still operate stably. Compared with traditional stainless steel pumps, its service life is extended by more than three times. After a pesticide production enterprise used the digital metering pump to add corrosive raw materials, the equipment failure cycle was extended from 1 month to 12 months. The number of maintenance operations was reduced by 11 times per year, significantly reducing the downtime losses.
In response to the demand for various ratios of chemical components, the collaborative control capability of digital metering pumps is highly advantageous. Multiple devices can be networked through the RS485 bus and be uniformly controlled by the central system, enabling synchronized flow regulation and keeping the ratio error within ±0.3%. In the dye synthesis process, by precisely adding different intermediates using three digital metering pumps, the color fastness of the product was improved by two grades, and the batch qualification rate increased from 85% to 99.5%. At the same time, the built-in overpressure protection and leakage detection functions of the equipment can immediately shut down and alarm when there is abnormal pipeline pressure or seal failure, preventing the leakage of toxic and harmful media, thus strengthening the safety defense line for chemical production.
